HackRF, an open source SDR platform by Michael Ossmann — Kickstarter

HackRF – rtl-sdr.com

HackRF: open source SDR on Kickstarter

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HackRF Blue

Open Source RF Platform HackRF is campaigning on Kickstarter - Open Electronics - Open Electronics

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PDF) Electronic-Warfare (EW) Training with Software-Defined Radio (SDR)

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